You're watching America this morning America's number 1 the early morning news. -- -- -- People hurt you can only imagine that many of those injuries are quite extensive BC's doctor Richard -- shed some light now on what we can expect to see it for such a massive explosion that involves ammonia. With a blast you have to first think about the injuries from the -- itself and so you'd be looking here. Hurts -- burn you could be looking at that broken bones injuries suited to soft -- just from the explosion. But when you add in the chemical ammonia then you worry about what kind of Reading protection people -- who -- who were really close to that that blast. Ammonia can have a number of different different. It impacts on your body it's very you're cheating choruses. We also note per ammonia no Al howl -- just -- that at very low levels. At high level ammonia can be very damaging to treat your rest record tractor -- true he can cause swelling -- -- eager airwaves that could be very destructive. So high -- you worry about people having lung damage and it did in difficulty breathing and they would be a need for a lot of rest were support. Doctor we're talking about hundreds of people being taken about twenty miles way to the Waco area for treatment right now as you mentioned lacerations cuts those kind of injuries. These -- people probably couple miles from the blast -- anybody was at that last seen I don't know if you saw that video that we just showed. Any chance somebody was fighting a fire -- a -- that is right up there on those flames could catch myself like that. Well in the -- he you'd never know -- -- you want a -- -- keep -- hope you know I have not. Seen the videos. -- what took place there. But you hope that that people who survived the blast itself. It's their evacuated quickly which what to do with exposure to ammonia get people waste their very quickly you -- removed. Any clothing that could have that ammonia on it and at each intimidate people it that way so -- not getting on going exposure to the chemical. -- want to get that was doctor -- -- -- who was talking about the exposure to ammonia and an area like this which can be potentially lethal.

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